I would reccomend Firefox 4 beta. It's a lot faster than 3.6.x and is more secure also.

Thanks. Sounds like good advice to me (an "old" farmer who only knows the basics.

I had a lot of add ons that were not compatible with the 4.0 Beta version. I had to put back the 3.6. Still have same original issue of constantly "Not Responding" though. Thought upgrading would resolve issue and be more, not less compatible. One program was Twitter, my Tweetdeck. Look what trying has done to my hair after many hrs! LOL